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- /*
- * include/linux/sunrpc/xdr.h
- *
- * Copyright (C) 1995, 1996 Olaf Kirch <okir@monad.swb.de>
- */
-
- #ifndef _SUNRPC_XDR_H_
- #define _SUNRPC_XDR_H_
-
- #ifdef __KERNEL__
-
- #include <linux/uio.h>
-
- /*
- * Buffer adjustment
- */
- #define XDR_QUADLEN(l) (((l) + 3) >> 2)
-
- /*
- * Generic opaque `network object.' At the kernel level, this type
- * is used only by lockd.
- */
- #define XDR_MAX_NETOBJ 1024
- struct xdr_netobj {
- unsigned int len;
- u8 * data;
- };
-
- /*
- * This is the generic XDR function. rqstp is either a rpc_rqst (client
- * side) or svc_rqst pointer (server side).
- * Encode functions always assume there's enough room in the buffer.
- */
- typedef int (*kxdrproc_t)(void *rqstp, u32 *data, void *obj);
-
- /*
- * These variables contain pre-xdr'ed values for faster operation.
- * FIXME: should be replaced by macros for big-endian machines.
- */
- extern u32 xdr_zero, xdr_one, xdr_two;
-
- extern u32 rpc_success,
- rpc_prog_unavail,
- rpc_prog_mismatch,
- rpc_proc_unavail,
- rpc_garbage_args,
- rpc_system_err;
-
- extern u32 rpc_auth_ok,
- rpc_autherr_badcred,
- rpc_autherr_rejectedcred,
- rpc_autherr_badverf,
- rpc_autherr_rejectedverf,
- rpc_autherr_tooweak,
- rpc_autherr_dropit;
-
- void xdr_init(void);
-
- /*
- * Miscellaneous XDR helper functions
- */
- u32 * xdr_encode_string(u32 *p, const char *s);
- u32 * xdr_decode_string(u32 *p, char **sp, int *lenp, int maxlen);
- u32 * xdr_encode_netobj(u32 *p, const struct xdr_netobj *);
- u32 * xdr_decode_netobj(u32 *p, struct xdr_netobj *);
- u32 * xdr_decode_netobj_fixed(u32 *p, void *obj, unsigned int len);
-
- /*
- * Adjust iovec to reflect end of xdr'ed data (RPC client XDR)
- */
- static inline int
- xdr_adjust_iovec(struct iovec *iov, u32 *p)
- {
- return iov->iov_len = ((u8 *) p - (u8 *) iov->iov_base);
- }
-
- #endif /* __KERNEL__ */
-
- #endif /* _SUNRPC_XDR_H_ */
-